File photoMichigan State Police trooper are investigating a crash that killed two early Wednesday morning. Alcohol and speed are believed to be factors.

ADAMS TWP., MI — Two people died in an early morning crash in Hillsdale County's Adam Township.

A 21-year-old man and a 43-year-old man, both passengers in the car, were pronounced dead at the scene, according to a news release from the Michigan State Police. The driver, a 44-year-old man, was flown to the University of Michigan Medical Center in critical condition.

All involved are from Hillsdale. Their names have not yet been released.

The crash happened about 12:10 a.m. in the area of E. Bacon and Tripp roads, the release stated. The car was traveling west on E. Bacon Road when the driver lost control, went off the road and struck a tree.

When police, fire and paramedics arrived at the scene, the three were still inside the car, according to the release.

The crash is under investigation, but initial findings lead police to suspect alcohol and speed were factors in the crash, the release stated. Once the investigation is completed, the state police will submit the report to the Hillsdale County Prosecutor's Office for possible charges.Location of crash